Downblast Exhauster Drive Type Direct Drive Assembly Assembled Wheel Diameter 9 in Base Diameter Not Applicable Base Length 19 in Base Width 19 in Base Shape Square Nameplate Voltage 120V AC Phase 1 Motor Horsepower 1/12 hp Exhaust Airflow @ 0.000 in SP 500 cfm For High-Static Pressure Applications Yes High-Efficiency Motor No For Air Type Clean Air Includes Drive Package Yes Includes Motor Yes Mounting Location Roof and Wall Maximum Static Pressure 1/2 in wc